Cherbourg-en-Cotentin to Falmouth Harbour — sea route & marine weather
The sea route from Cherbourg-en-Cotentin (FRCER) to Falmouth Harbour (GBFAL) is about 139 nm — about 14 hours at 10 kn. Along the route today (Aug 3): S wind 1–11 kn, waves 0.4–0.8 m. The baseline track is drawn on the chart; Calculate replans it for your vessel and live weather.
Passage facts| Sea-route distance | 139 nm |
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| Passage time at 10 kn | about 14 hours |
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| Great-circle distance | 137 nm |
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| Cherbourg-en-Cotentin | 49°38.0′N 1°37.0′W |
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| Falmouth Harbour | 50°9.0′N 5°4.0′W |
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| Reference vessel | 4.5 m draft, 10 kn cruise |
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10-day marine forecast — along the route
| Date | Wind | Gusts | Waves |
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| S 1–11 kn | 13 kn | 0.4–0.8 m |
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| SW 8–17 kn | 24 kn | 0.6–1.3 m |
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| WSW 14–21 kn | 28 kn | 0.8–1.6 m |
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| WNW 9–16 kn | 22 kn | 0.4–1.3 m |
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| NW 4–9 kn | 13 kn | 0.2–0.7 m |
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| ESE 3–11 kn | 14 kn | 0.2–0.5 m |
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| WSW 10–14 kn | 18 kn | 0.3–0.7 m |
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| WNW 7–10 kn | 17 kn | 0.4–0.7 m |
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| E 11–14 kn | 18 kn | 0.5–0.6 m |
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| ENE 6–8 kn | 11 kn | 0.2–0.4 m |
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Forecast from the ECMWF IFS model run , waves from ECMWF WAM. Updated with each model cycle; the live chart below recalculates for your departure time and vessel.
Frequently asked
How far is it from Cherbourg-en-Cotentin to Falmouth Harbour by sea?
The water route is 139 nm (258 km), computed on WXMarine's maritime routing network. The same distance applies on the return passage from Falmouth Harbour to Cherbourg-en-Cotentin.
How long does the passage from Cherbourg-en-Cotentin to Falmouth Harbour take?
about 14 hours at a 10 kn cruise. Scale by your own speed: at half the speed it takes about twice as long. The planner on this page recalculates for your vessel and live weather.
What is the weather between Cherbourg-en-Cotentin and Falmouth Harbour today?
Along the route today, per the ECMWF IFS run 2026-08-03 12z: S wind 1–11 kn, waves 0.4–0.8 m. The day-by-day table on this page covers the next 10 days.